$normal-line:#00ffea;
$normal-bg:rgba(0,255,234,0.2);
$warning-line:#f00;
$warning-bg:rgba(255,0,0,0.2);
@mixin size {
    width: 100%;
    min-width: 100px;
    height: 100%;
    min-height: 100px;
    padding:10px;
}
@mixin beforesize {
    content: '';
    position: absolute;
    top:0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 100;
}

@keyframes respire{
    0%{
        opacity: 1;
    }
    50%{
        opacity: 0.2;
    }
    100%{
        opacity: 1;
    }
}
@mixin respire-base {
    content: '';
    position: absolute;
    top:0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 101;
    animation: respire 1s ease-in-out infinite;
}